Clin Orthop Surg.
2010 Jun;2(2):121-124. 10.4055/cios.2010.2.2.121.
Multidirectional Instability Accompanying an Inferior Labral Cyst
- Affiliations
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- 1Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, The Catholic University College of Medicine, Daejeon, Korea. osmcy@naver.com
- 2Department of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, Korea.
- KMID: 1719339
- DOI: http://doi.org/10.4055/cios.2010.2.2.121
Abstract
- Paralabral cyst of the shoulder joint can be observed in 2% to 4% of the general population, particularly in men during the third and fourth decade. On average, these cysts measure 10 mm to 20 mm in diameter and are located preferentially on the postero-superior aspect of the glenoid. The MRI has increased the frequency of the diagnosis of paralabral cysts of the shoulder joint. Paralabral cysts of the shoulder joint usually develop in the proximity of the labrum. The relationship between shoulder instability and labral tears is well known, however, the association of shoulder instability with a paralabral cyst is rare. Shoulder instability may cause labral injury or labral injury may cause shoulder instability, and then injured tear develops paralabral cyst. In our patient, the inferior paralabral cyst may be associated with inferior labral tears and instability MRI.
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